Artist studio: Miroslaw Balka takes us on a tour

Step inside the studio of artist Miroslaw Balka, where he works next door to the house he grew up in the town of Otwock, Poland. As he prepares to become the 10th Unilever artist to fill Tate Modern's Turbine Hall next month, he
takes the Guardian's art critic Adrian Searle around the Nazi death camp that haunts his work

Having seen all but one of the Tate's previous 10 Unilever projects – everything but Anish Kapoor's Marsyas – Balka says that each commission makes it feel harder for the next artist. But he won't divulge what he's going to do